Just brought home a headless Bridgeport, it's on my trailer in the driveway. After I clear enough of a path to get it into the shop, I'm going to try and put together a working Vari-Speed Chiwanese head out of 4 heads and motors in various states of disrepair.
If you give up, I've got an entire Bridgeport 1J head sitting idle. - GWE
exactly
visions of learning to swear in Chinese...
$600 obo, in a suburb outside of Seattle, Washington. To email me offline, see
I can see that day coming. I think I might be able to learn something working on the heads. They are mostly intact, with the exception of the vari-speed sheave setup, which I hope to convert to a fixed drive controlled by a VFD.
I'm a bit late getting in on this thread. After you are done, I might be interested in buying an extra Chiwanese motor off of you if the motor has a long shaft that I can mount a B'port variable pulley to (don't remember the B'port motor shaft diameter off hand although I could aways turn a bushing if the shaft is undersize). I have been searching on E-bay and the B'port 2 hp motors are a bit too pricey for me. I think I have all the parts to complete the assembly of a 2J head, minus the motor.
I'll take the measurements. I believe they are 3 HP motors. The shaft is very close to 30 mm in diameter with considerable wear. I am going to try and fix the sheaves in position, I think there is too much wear to use the floating sheave/vari-speed setup.
You can pull the rotor, turn the shaft, and sweat on a sleeve, or have it flame sprayed and built back up. This is pretty typical when the user started hearing noise and ignored it for a long time.
One often finds the motor shaft keyway blown out badly. In which case you clean it up, and turn the shaft 180 degrees and put in a new keyway. The pulleys will be blown out inside as well, so they will need to be bored and bushed
Gunner
Rule #35 "That which does not kill you, has made a huge tactical error"
Unfortunately I don't have the moving pulley or the spring. If I pull the rotor, is it something I can easily chuck in a six-inch three jaw chuck on a South Bend Heavy 10, or do I need some kind of special soft jawed armature holding device?
You should..should.. be able to hold the off end with the chuck, though a collet would be better. The rotors are not that big. Of course Id use either a very very good live center or a decent dead center in the end of the motor shaft. Its likely to be threaded in its ID btw,..some were some were not.
You want to put it back in order? I may have access to the spring, and moving pulley half. I know for sure I have the pully half, but its badly blown out and will need to be bored and sleeved.
Gunner
Rule #35 "That which does not kill you, has made a huge tactical error"
I would like to put it back in order. I'll send you an email.
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